Global Patent Index - EP 4336774 A1

EP 4336774 A1 20240313 - FAULT DETECTION FOR STREAMING OF CRYPTOGRAPHIC DATA OBJECTS

Title (en)

FAULT DETECTION FOR STREAMING OF CRYPTOGRAPHIC DATA OBJECTS

Title (de)

FEHLERERKENNUNG BEIM STREAMING KRYPTOGRAPHISCHER DATENOBJEKTE

Title (fr)

DÉTECTION DE DÉFAILLANCE POUR LA TRANSMISSION EN CONTINU D'OBJETS DE DONNÉES CRYPTOGRAPHIQUES

Publication

EP 4336774 A1 20240313 (EN)

Application

EP 23194859 A 20230901

Priority

US 202217943051 A 20220912

Abstract (en)

plurality of objects that comprise an input to a cryptographic signing function. For each object in the plurality of objects, an output value y<sub>i</sub> of a hash function is calculated, where the value i is equal to an index value of the object, a compressed output value x<sub>i</sub> of a compression function is calculated, the output value y<sub>i</sub> from the computer readable memory, and the compressed output value x<sub>i</sub> is stored. For each object in the plurality of objects, an output value y'<sub>i</sub> of the hash function is calculated, where the value i is equal to the index value of the object, a compressed output value x'<sub>i</sub> of the compression function executed on the output value y'<sub>i</sub> is calculated, the output value x'<sub>i</sub> is determined to be equal to the output value x<sub>i</sub>, and the output value y'<sub>i</sub> is transmitted in an output data stream.

IPC 8 full level

H04L 9/00 (2022.01); H04L 9/06 (2006.01); H04L 9/32 (2006.01)

CPC (source: CN EP US)

G06F 11/1004 (2013.01 - CN); G06F 21/46 (2013.01 - CN); G06F 21/602 (2013.01 - CN); G06F 21/64 (2013.01 - CN); H04L 9/004 (2013.01 - EP); H04L 9/0643 (2013.01 - EP); H04L 9/3236 (2013.01 - US); H04L 9/3247 (2013.01 - EP US); H04L 9/50 (2022.05 - EP); H04L 2209/30 (2013.01 - US); H04L 2209/34 (2013.01 - EP)

Citation (search report)

  • [IA] MOZAFFARI-KERMANI MEHRAN M MOZAFFARI@RIT EDU ET AL: "Fault Detection Architectures for Post-Quantum Cryptographic Stateless Hash-Based Secure Signatures Benchmarked on ASIC", ACM TRANSACTIONS ON EMBEDDED COMPUTING SYSTEMS, ACM, NEW YORK, NY, US, vol. 16, no. 2, 12 December 2016 (2016-12-12), pages 1 - 19, XP058676793, ISSN: 1539-9087, DOI: 10.1145/2930664
  • [A] AMIET DORIAN ET AL: "FPGA-based SPHINCS+ Implementations: Mind the Glitch", 2020 23RD EUROMICRO CONFERENCE ON DIGITAL SYSTEM DESIGN (DSD), IEEE, 26 August 2020 (2020-08-26), pages 229 - 237, XP033838519, DOI: 10.1109/DSD51259.2020.00046

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4336774 A1 20240313; CN 117688617 A 20240312; US 12101412 B2 20240924; US 2024089113 A1 20240314

DOCDB simple family (application)

EP 23194859 A 20230901; CN 202311155524 A 20230908; US 202217943051 A 20220912